What is the purpose of using mt_srand() and microtime() in the PHP code snippet provided?

When generating random numbers in PHP, it is important to seed the random number generator to ensure that the numbers generated are truly random. This is where mt_srand() comes in - it sets the seed for the random number generator. Using microtime() as part of the seed ensures that the seed is different each time the script runs, leading to more unpredictable random numbers.

// Seed the random number generator using microtime()
mt_srand(microtime(true) * 1000000);

// Generate a random number
$randomNumber = mt_rand(1, 100);

echo $randomNumber;